Analysis

  • max time kernel
    26s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    09-01-2024 18:48

General

  • Target

    e9938f2d916c0fddd8230ac0241c4c42cf55ed5eb58e4b4ab6fb161000817559.exe

  • Size

    312KB

  • MD5

    f9cd86ed372b9fda0ca24ed082b4a742

  • SHA1

    b9a7bc7e10d3a6272acb3646fb31f5f2672e54f0

  • SHA256

    e9938f2d916c0fddd8230ac0241c4c42cf55ed5eb58e4b4ab6fb161000817559

  • SHA512

    2ef77bf6bfacd8f31c587a4fad9da8e9067abe0dc670764cad020e8bfea68a17ea4483a6878a2a40c195f6c2ab93faa46cf9947440a47ccaeb774db5f823c5dd

  • SSDEEP

    3072:fjMaOxcaTL6oaxJ2Hhom98iQ0txmYej1/PXzVHDVN/c5/yiT9laARTYFkc:fqxnLlav2BFKytLk1XXzVjVEDT0Fk

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Runs regedit.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\e9938f2d916c0fddd8230ac0241c4c42cf55ed5eb58e4b4ab6fb161000817559.exe
    "C:\Users\Admin\AppData\Local\Temp\e9938f2d916c0fddd8230ac0241c4c42cf55ed5eb58e4b4ab6fb161000817559.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2140
  • C:\Users\Admin\AppData\Local\Temp\7CBE.exe
    C:\Users\Admin\AppData\Local\Temp\7CBE.exe
    1⤵
    • Executes dropped EXE
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious use of AdjustPrivilegeToken
    PID:2804
    • C:\Windows\SysWOW64\explorer.exe
      C:\Windows\SysWOW64\explorer.exe
      2⤵
        PID:2688
        • C:\Users\Admin\AppData\Local\Temp\k759ciu9kmg_1.exe
          /suac
          3⤵
            PID:2204
            • C:\Windows\SysWOW64\regedit.exe
              "C:\Windows\SysWOW64\regedit.exe"
              4⤵
              • Runs regedit.exe
              PID:2968
            • C:\Windows\SysWOW64\schtasks.exe
              "C:\Windows\System32\schtasks.exe" /CREATE /SC ONLOGON /TN "Windows Update Check - 0x1BB70478" /TR "C:\PROGRA~3\JAVAUP~1\K759CI~1.EXE" /RL HIGHEST
              4⤵
              • Creates scheduled task(s)
              PID:2948
      • C:\Users\Admin\AppData\Local\Temp\823B.exe
        C:\Users\Admin\AppData\Local\Temp\823B.exe
        1⤵
          PID:2980

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1144-4-0x0000000002DD0000-0x0000000002DE6000-memory.dmp

          Filesize

          88KB

        • memory/1144-60-0x0000000077001000-0x0000000077002000-memory.dmp

          Filesize

          4KB

        • memory/1144-92-0x0000000002D90000-0x0000000002D91000-memory.dmp

          Filesize

          4KB

        • memory/1576-106-0x0000000077001000-0x0000000077002000-memory.dmp

          Filesize

          4KB

        • memory/2140-2-0x00000000001C0000-0x00000000001C9000-memory.dmp

          Filesize

          36KB

        • memory/2140-3-0x0000000000400000-0x000000000086F000-memory.dmp

          Filesize

          4.4MB

        • memory/2140-1-0x00000000002F0000-0x00000000003F0000-memory.dmp

          Filesize

          1024KB

        • memory/2140-5-0x0000000000400000-0x000000000086F000-memory.dmp

          Filesize

          4.4MB

        • memory/2204-105-0x0000000000230000-0x0000000000236000-memory.dmp

          Filesize

          24KB

        • memory/2204-104-0x0000000001D40000-0x0000000001DA6000-memory.dmp

          Filesize

          408KB

        • memory/2204-85-0x0000000000230000-0x0000000000236000-memory.dmp

          Filesize

          24KB

        • memory/2204-87-0x0000000001E00000-0x0000000001E0C000-memory.dmp

          Filesize

          48KB

        • memory/2204-89-0x0000000001D40000-0x0000000001DA6000-memory.dmp

          Filesize

          408KB

        • memory/2204-86-0x0000000001D40000-0x0000000001DA6000-memory.dmp

          Filesize

          408KB

        • memory/2204-84-0x0000000001D40000-0x0000000001DA6000-memory.dmp

          Filesize

          408KB

        • memory/2204-103-0x0000000000010000-0x000000000006D000-memory.dmp

          Filesize

          372KB

        • memory/2688-30-0x0000000077190000-0x0000000077311000-memory.dmp

          Filesize

          1.5MB

        • memory/2688-29-0x0000000077190000-0x0000000077311000-memory.dmp

          Filesize

          1.5MB

        • memory/2688-40-0x0000000000320000-0x000000000032C000-memory.dmp

          Filesize

          48KB

        • memory/2688-38-0x0000000077190000-0x0000000077311000-memory.dmp

          Filesize

          1.5MB

        • memory/2688-41-0x0000000000090000-0x0000000000154000-memory.dmp

          Filesize

          784KB

        • memory/2688-37-0x0000000000090000-0x0000000000154000-memory.dmp

          Filesize

          784KB

        • memory/2688-32-0x0000000077190000-0x0000000077311000-memory.dmp

          Filesize

          1.5MB

        • memory/2688-108-0x0000000077190000-0x0000000077311000-memory.dmp

          Filesize

          1.5MB

        • memory/2688-96-0x0000000077190000-0x0000000077311000-memory.dmp

          Filesize

          1.5MB

        • memory/2688-55-0x0000000077190000-0x0000000077311000-memory.dmp

          Filesize

          1.5MB

        • memory/2688-56-0x0000000077190000-0x0000000077311000-memory.dmp

          Filesize

          1.5MB

        • memory/2688-90-0x0000000077190000-0x0000000077311000-memory.dmp

          Filesize

          1.5MB

        • memory/2688-34-0x00000000002A0000-0x00000000002A6000-memory.dmp

          Filesize

          24KB

        • memory/2688-82-0x0000000077190000-0x0000000077311000-memory.dmp

          Filesize

          1.5MB

        • memory/2688-57-0x0000000077190000-0x0000000077311000-memory.dmp

          Filesize

          1.5MB

        • memory/2688-31-0x0000000077190000-0x0000000077311000-memory.dmp

          Filesize

          1.5MB

        • memory/2688-35-0x0000000077190000-0x0000000077311000-memory.dmp

          Filesize

          1.5MB

        • memory/2688-33-0x0000000000090000-0x0000000000154000-memory.dmp

          Filesize

          784KB

        • memory/2688-36-0x0000000077190000-0x0000000077311000-memory.dmp

          Filesize

          1.5MB

        • memory/2688-59-0x0000000077190000-0x0000000077311000-memory.dmp

          Filesize

          1.5MB

        • memory/2688-58-0x0000000077190000-0x0000000077311000-memory.dmp

          Filesize

          1.5MB

        • memory/2688-61-0x0000000077190000-0x0000000077311000-memory.dmp

          Filesize

          1.5MB

        • memory/2688-63-0x0000000077190000-0x0000000077311000-memory.dmp

          Filesize

          1.5MB

        • memory/2688-62-0x0000000077190000-0x0000000077311000-memory.dmp

          Filesize

          1.5MB

        • memory/2688-64-0x0000000076FB0000-0x0000000077159000-memory.dmp

          Filesize

          1.7MB

        • memory/2688-66-0x00000000002A0000-0x00000000002A6000-memory.dmp

          Filesize

          24KB

        • memory/2688-65-0x0000000000090000-0x0000000000154000-memory.dmp

          Filesize

          784KB

        • memory/2688-68-0x0000000077190000-0x0000000077311000-memory.dmp

          Filesize

          1.5MB

        • memory/2688-67-0x0000000077190000-0x0000000077311000-memory.dmp

          Filesize

          1.5MB

        • memory/2688-70-0x0000000077190000-0x0000000077311000-memory.dmp

          Filesize

          1.5MB

        • memory/2688-69-0x0000000077190000-0x0000000077311000-memory.dmp

          Filesize

          1.5MB

        • memory/2688-71-0x0000000000090000-0x0000000000154000-memory.dmp

          Filesize

          784KB

        • memory/2688-72-0x0000000077190000-0x0000000077311000-memory.dmp

          Filesize

          1.5MB

        • memory/2804-44-0x0000000001EE0000-0x0000000001EE1000-memory.dmp

          Filesize

          4KB

        • memory/2804-27-0x0000000000360000-0x00000000003C6000-memory.dmp

          Filesize

          408KB

        • memory/2804-20-0x0000000000290000-0x0000000000296000-memory.dmp

          Filesize

          24KB

        • memory/2804-22-0x00000000771A0000-0x00000000771A1000-memory.dmp

          Filesize

          4KB

        • memory/2804-23-0x0000000000360000-0x00000000003C6000-memory.dmp

          Filesize

          408KB

        • memory/2804-43-0x0000000000360000-0x00000000003C6000-memory.dmp

          Filesize

          408KB

        • memory/2804-45-0x0000000000290000-0x0000000000296000-memory.dmp

          Filesize

          24KB

        • memory/2804-26-0x0000000001EF0000-0x0000000001EFC000-memory.dmp

          Filesize

          48KB

        • memory/2804-19-0x0000000000360000-0x00000000003C6000-memory.dmp

          Filesize

          408KB

        • memory/2804-21-0x00000000002A0000-0x00000000002AD000-memory.dmp

          Filesize

          52KB

        • memory/2804-24-0x0000000000420000-0x0000000000421000-memory.dmp

          Filesize

          4KB

        • memory/2804-18-0x0000000000010000-0x000000000006D000-memory.dmp

          Filesize

          372KB

        • memory/2968-97-0x0000000000680000-0x00000000006E6000-memory.dmp

          Filesize

          408KB

        • memory/2968-98-0x0000000000680000-0x00000000006E6000-memory.dmp

          Filesize

          408KB

        • memory/2968-100-0x0000000000680000-0x00000000006E5000-memory.dmp

          Filesize

          404KB

        • memory/2968-101-0x00000000000D0000-0x00000000000DB000-memory.dmp

          Filesize

          44KB

        • memory/2980-54-0x0000000000E10000-0x00000000013A6000-memory.dmp

          Filesize

          5.6MB

        • memory/2980-53-0x0000000000E10000-0x00000000013A6000-memory.dmp

          Filesize

          5.6MB